I can't find any references for strategic lateral offset in any regions other than the various oceanic FIRs and South America. I'm not asking you guys to spoon feed me (OK, maybe a little), but could someone tell me if you're allowed to offset in controlled airspace in North America or Europe and point me to the FAA or ICAO source doc?

Thanks, Fredrico[/quote]

The easiest place to find this info is on the back of the Jepp north atlantic chart. I believe it's on the bottom of panel e or g. SLOP allows for 1 or 2 mile offsets right of course. Hope that helps.